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68results about How to "Increase drilling speed" patented technology
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Synchronous water spraying device for tempered glass trepanning processing
ActiveCN222521699Ureduce surface temperatureprevent burstWorking accessoriesStone-like material working toolsThermal dilatationGlass fragment
The utility model relates to the technical field of tempered glass processing, in particular to a synchronous water spraying device for tempered glass trepanning processing. The technical problems that according to an existing trepanning machining device, a special drill bit is usually adopted for completing trepanning operation, due to the fact that tempered glass is high in hardness, a large amount of heat can be generated during drilling, a transmission pipe cannot synchronously spray cooling liquid along with the drill bit in time for cooling and heat dissipation, the drill bit can be possibly overheated, and abrasion of the drill bit is aggravated are solved. The drill bit is deformed or fractured, and the product quality is influenced. According to the technical scheme, the synchronous water spraying device for tempered glass trepanning machining comprises a workbench, a machining assembly, a conveying assembly and a positioning assembly. The spraying pipe synchronously sprays water and cools along with drilling of the drill bit, the surface temperature of drilled glass can be rapidly reduced in time, thermal expansion and thermal stress are reduced, glass burst is prevented, the drilling speed is increased, meanwhile, water flow can keep the surface of the glass in a wet state, and glass fragments are reduced.
Owner:沙河市多姆森玻璃有限公司
Composite drill bit of rotary drilling rig
ActiveCN222542363UImprove structural strengthensure safetyDrill bitsConstructionsShock absorberDrill bit
The utility model discloses a rotary drilling rig composite drill bit which comprises a drill body, the upper surface of the drill body is fixedly connected with a plurality of installation seats, the upper surface of each installation seat is fixedly connected with a first drill bit body, the inner wall of the drill body is fixedly connected with an installation plate, and the upper surface of the installation plate is fixedly connected with a connecting column. Symmetrical connecting rods are fixedly connected to the outer surface of the connecting column, a set of sawteeth arranged at equal intervals are fixedly connected to the outer surface of each connecting rod, a set of second drill bit bodies arranged at equal intervals are fixedly connected to the outer surface of each connecting rod, and a fixing cylinder is fixedly connected to the bottom face of the mounting plate. A damper is fixedly connected to the inner top wall of the fixing cylinder, a damping spring is fixedly connected to the inner top wall of the fixing cylinder, and a damping plate is fixedly connected to the bottom end of the damper and the bottom end of the damping spring jointly. The utility model can overcome the difficulties that the conventional drill bit is easy to slip when meeting water in the mudstone stratum, the drilling speed is low and the like, improve the construction efficiency and reduce the construction cost.
Owner:THE 2ND ENG CO LTD OF CHINA RAILWAY 17 BUREAU GRP
Shaft simulation device for thrust test of vertical drilling tool
The invention relates to the technical field of petroleum and natural gas well cementation tools, in particular to a wellbore simulation device for a thrust test of a vertical drilling tool, and aims to solve the problem that the drilling efficiency is reduced due to the fact that bit pressure is reduced in order to guarantee the stability of the vertical drilling tool. The device comprises a shaft simulation system, a circulating oil charging system and a thrust monitoring system, the shaft simulation system comprises a heating cylinder, an annular oil storage space with two closed ends is defined by the pushing type vertical drilling tool and the heating cylinder, and the heating cylinder is used for heating liquid in the annular oil storage space; the circulating oil charging system is communicated with the pushing type vertical drilling tool to form a circulating loop; the thrust monitoring system includes a thrust sensor. By simulating the underground working environment and detecting the thrust through the thrust monitoring system, the drilling pressure allowed by the vertical drilling tool to keep stable work under different temperature conditions and the pressure required for balancing the drilling pressure are obtained, and therefore reliable data support is provided for increasing the drilling speed.
Owner:CNPC BOHAI DRILLING ENG +1
Intelligent self-control friction-reducing, resistance-reducing and speed-increasing composite screw drilling tool
PendingCN119308590Aincrease drilling speedBorehole drivesAutomatic control for drillingDrive shaftClassical mechanics
The invention relates to an intelligent self-control friction-reducing, resistance-reducing and speed-increasing composite screw drill which comprises a forward straight screw drill, an intelligent self-control friction-reducing, resistance-reducing and speed-increasing system, a tool face angle measuring system, an MWD (measurement while drilling) short circuit and a forward single-bend screw drill. The forward straight screw drill comprises an upper valve body, an upper motor assembly barrel, an upper universal shaft barrel, an upper transmission shaft and an upper centralizer, and the forward single-bend screw drill comprises a lower valve body. According to the intelligent self-control friction-reducing, resistance-reducing and speed-increasing composite screw drill, the friction-reducing, resistance-reducing and speed-increasing effects can be automatically achieved through an intelligent control means.
Owner:CHINA OILFIELD SERVICES LTD
A diamond compact
ActiveCN117569746BReduced wear at the same locationincrease drilling speedDrill bitsMechanical engineeringMouth opening
The application relates to a diamond compact, which comprises a tooth sleeve, the cross section of the tooth sleeve is arranged in a circular ring, a blocking disc is coaxially fixed to an opening of one end of the tooth sleeve, a tooth lock body is fixed to the inner side of the blocking disc, a tooth body is provided with a lock groove at one end, a tooth crown is fixed to the other end, the tooth body is installed in the tooth sleeve, the tooth lock body is axially locked with the lock groove, and the tooth body can rotate relative to the tooth lock body. The tooth body can rotate around the tooth sleeve, the position of the tooth crown in contact with the rock is continuously changed, the abrasion of the same position of the tooth crown is reduced, the probability of sudden rupture of the tooth crown is greatly reduced, the cutting edge can be kept sharp for a long time, the service life of the compact is prolonged, and the drilling speed and footage of the PDC drill bit are improved.
Owner:KINGDREAM PLC CO +1
Variable-frequency electrically-driven top-drive core drill for geological coring exploration
ActiveCN119308588AImprove cooling effectreduce accumulationConstructionsDrilling rodsTop driveRock core
The invention discloses a variable-frequency electrically-driven top drive type core drill for geological coring exploration, and relates to the technical field of drilling tools, the variable-frequency electrically-driven top drive type core drill comprises a fixed support, a mud tank is mounted on the fixed support, and a liquid outlet of the mud tank is communicated with a hollow flowing channel in a drill rod through a conveying hose; the lifting supporting frame is connected with a variable-frequency driving motor, the variable-frequency driving motor can move up and down along the lifting supporting frame, an output shaft of the variable-frequency driving motor is connected with a rotating rod, and the end, away from the variable-frequency driving motor, of the rotating rod is connected with a drill rod; the downward pressing device is fixed to the lifting supporting frame, and the telescopic end of the downward pressing device can push the rotating rod downwards; a mixture inlet of the slurry treatment equipment is communicated with the drill hole through an overflow pipe, a conveyor is arranged below a solid outlet of the slurry treatment equipment, and a liquid outlet of the slurry treatment equipment is communicated with a liquid inlet of the slurry tank through a return pipe. According to the invention, the injection and recovery system of the drilling fluid is optimized.
Owner:CHIFENG BRANCH OF CHINA NATIONAL NUCLEAR LAND ECOLOGICAL TECHNOLOGY CO LTD
Novel electric control hydraulic punching device
ActiveCN224183275UImprove cutting efficiencyImprove cut qualityMetal working apparatusTunnelsWater flowElectric control
The utility model discloses a novel electric control hydraulic punching device which comprises a shell, an electric cylinder connecting base is fixedly installed in the shell, a telescopic electric cylinder is installed in the electric cylinder connecting base, a top end cover is installed at the output end of the telescopic electric cylinder, and an electric cylinder pressure stabilizing plate protection outer pipe is fixedly installed in the shell. A power line connecting piece is fixedly mounted in the shell; the device is placed in a mechanical water jet cutter of an underground hydraulic cave-making water jet cutter device, the top end cover is controlled to move through stretching and retracting of the output end of the telescopic electric cylinder, and a water flow channel in the water jet cutter can be changed through movement of the top end cover, so that water flow can flow in the preset direction; therefore, the water flow direction in the water jet cutter is precisely controlled, the cutting efficiency and the hole forming quality of the water jet cutter can be remarkably improved through precise water flow control, and energy consumption and equipment abrasion are reduced.
Owner:SHANXI ZHICHENG FLUID POWER EQUIPMENT CO LTD
A variable diameter pyramid type drilling powder discharge and pressure relief device
ActiveCN111810056Bpromote fragmentationIncrease the degree of fragmentationDrill bitsConstructionsThermodynamicsMechanics
The present invention discloses a variable diameter pyramid type drilling powder discharge pressure relief device, which belongs to the field of drilling pressure relief in coal mining or metal mining. It includes a pressure relief connecting rod and a powder discharge pressure relief drill bit, the powder discharge pressure relief drill bit is installed at the front end of the pressure relief connecting rod, and the rear end of the pressure relief connecting rod is connected to the drill rod. The powder discharge pressure relief drill bit includes a crushing exhaust pick part, a detachable pick part and a spiral powder discharge end cover part connected in sequence from front to back; the crushing exhaust pick part includes a crushing exhaust pick main body, and the crushing exhaust pick main body is respectively provided with axial crushing teeth, radial pick one and air guide holes, and the detachable pick part is formed by connecting a plurality of groups of detachable pick monomers in sequence, and the pick monomers are arranged in a triangular prism shape for the convenience of powder discharge, and the spiral powder discharge end cover part includes a spiral powder discharge end cover main body, and a spiral powder discharge groove and an air inlet hole are arranged on the spiral powder discharge end cover main body. The present invention can realize rapid powder discharge and rapid drilling in the target area during drilling under the action of high-pressure gas.
Owner:SHANDONG UNIV OF SCI & TECH
Nitrogen-assisted pneumatic directional drilling equipment and drilling slag removal methods for soft coal seams
ActiveCN117888821BFacilitate contact areareduce resistanceConstructionsDirectional drillingAir volumeSlag
This invention discloses a nitrogen-driven pneumatic directional drilling equipment for downhole cuttings removal in soft coal seams, comprising a nitrogen drive mechanism and a directional drilling rig. The directional drilling rig has a directional drill string assembly structure, which includes a drill rod. A probe outer tube is coaxially sleeved inside the drill rod, and a measuring probe is coaxially sleeved inside the probe outer tube. The measuring probe is used to measure the gas flow rate and pressure in the borehole. An annular downward air chamber for nitrogen gas flow is formed between the inner wall of the probe outer tube and the outer wall of the measuring probe. An air inlet is opened on the outer wall of the drill rod at the lower part, and an annular upward air chamber for nitrogen gas flow is formed between the inner wall of the drill rod above the air inlet and the outer wall of the probe outer tube. A trumpet-shaped wind shield, wider at the bottom and narrower at the top, is connected to the outer wall of the drill rod above the air inlet. This invention also discloses a corresponding borehole cuttings removal method. This invention significantly reduces the resistance to airflow, achieving faster drilling speeds and removing more cuttings under the same air volume and pressure.
Owner:SHANXI LUAN ENVIRONMENTAL ENERGY DEV CO LTD +1
Drilling equipment for multiple oil holes of gear
InactiveCN119407229Areduce complexityGuaranteed stabilityMaintainance and safety accessoriesBoring/drilling componentsGear wheelElectric machinery
Owner:HEBEI SHIDA GEAR CO LTD
Emulsifier for oil-based drilling fluid and preparation method thereof
ActiveCN116948613BImprove rheologyreduce viscosityOrganic compound preparationCarboxylic acid amides preparationCarboxylic acidFatty acid
The present invention belongs to the technical field of oil and gas drilling, and specifically relates to an emulsifier for oil-based drilling fluid and a preparation method thereof. The preparation method of an emulsifier for oil-based drilling fluid of the present invention comprises the following steps: S1, subjecting waste oil regenerated fatty acid to amidation reaction with polyethylene polyamine; S2, subjecting the product of the amidation reaction in step S1 to amidation reaction with compound A; the compound A is selected from one or any combination of dicarboxylic acid compounds, polycarboxylic acid compounds, and acid anhydride compounds. The preparation method of the emulsifier for oil-based drilling fluid of the present invention uses waste oil regenerated fatty acid as a basic raw material, has more superior environmental protection and economy, and the prepared emulsifier can improve the rheology of high-density oil-based drilling fluid when used in oil-based drilling fluid, reduce the viscosity and shear force of high-density oil-based drilling fluid, speed up drilling speed, and prevent the occurrence of complicated underground situations such as leakage.
Owner:SINOPEK PETROLEUM IZHINIRING TECH SERVIS KO LTD +1
Push-type guide drill bit, drilling tool and drilling method for underground coal mine
The present invention relates to a push-type guide drill bit, a drilling tool and a drilling method for underground coal mines. The present invention introduces flushing fluid into a groove body arranged on the outer surface of the drill bit body, and uses the flushing fluid to drive a push leg arranged in the groove body to extend out of the groove body to adjust the drilling direction. Therefore, the present invention has higher drilling efficiency, higher trajectory control accuracy and higher safety.
Owner:XIAN RES INST OF CHINA COAL TECH & ENG GRP CORP
Self drilling screw
The utility model discloses a self-drilling screw which comprises a screw head and a screw rod, a drill tail part is formed at the tail end, far away from the screw head, of the screw rod, the drill tail part comprises a drill tip and a chip groove located beside the drill tip, the screw head is in a funnel shape, and a plurality of chip guide channels distributed around the screw head in a vortex shape are formed at the bottom end of the screw head. The chip guiding channel extends upwards from the joint of the screw head and the screw rod, so that after the bottom of the screw head makes contact with waste chips accumulated on the surface of a component, the waste chips can be centrifugally thrown out along the chip guiding channel along with screwing rotation of the screw head, and the waste chips are discharged through the multiple chip outlets which are formed in the periphery of the upper end face of the screw head and communicate with the multiple chip guiding channels one to one. And the scraps are prevented from being blocked by the screw head and remaining between the lower part of the screw head and the surface of a component, so that the scraps are prevented from influencing the fastening between the self-drilling screw and the component, the subsequent cleaning is convenient, and the reliability of the self-drilling screw is improved.
Owner:DONGGUAN DIXING ELECTRONIC HARDWARE CO LTD
Directional drilling hole-forming device
InactiveCN119616375Apromote fragmentationRealize adaptive adjustmentDrill bitsDirectional drillingMining engineeringDirectional drilling
The invention discloses a directional drilling hole-forming device, and relates to the technical field of drilling tools, the directional drilling hole-forming device mainly comprises a drill bit, a rock breaking head and an elastic piece, the drill bit is connected with a driving device through a connecting piece for drilling, the rock breaking head is slidably arranged in the drill bit and can extend out of the drill bit, and the elastic piece is arranged at the side part of the rock breaking head; one end of the elastic piece is fixedly connected with the side part of the rock breaking head, and the other end is fixedly connected to the inner wall of one end of the drill far away from the driving device. The device can adapt to stratums with different hardness.
Owner:EXPLORATION TECH RES INST OF CHINESE ACADEMY OF GEOLOGICAL SCI
Spiral sand removing machine
ActiveCN224093357URemove harmful solid phaseImprove sand removal efficiencyFlushingDesanderElectric machinery
A spiral sand removing machine capable of removing harmful solid phases in drilling fluid is characterized in that a feeding box is installed on a base, an overflow pipe and a stirrer motor are installed on the upper portion of the feeding box, and a feeding pipe and a sand discharging pipe are installed on the lower portion of the feeding box and connected with the spiral sand removing machine. The spiral sand removing machine is structurally characterized in that a spring supporting vibration frame is mounted on a base; a central shaft is mounted on a vibrating frame as a feeding pipe, bearing seats and eccentric wheels are mounted at two ends of the central shaft, a spiral screen pipe is mounted in the middle of the central shaft, and a driving motor is mounted below the eccentric wheels to drive the eccentric wheels, the central shaft and the spiral screen pipe to rotate to generate centrifugal force and vibrating force to throw drilling fluid out of a screen to flow into a circulating tank; and harmful solid phases and drilling cuttings are discharged out of the spiral screen pipe and are discharged into the sand setting tank. The technical requirement of purifying the drilling fluid is met.
Owner:朱军 +2
Water jet geological exploration drilling machine
ActiveCN222501625UEasy to movelow relocation costsLiquid/gas jet drillingEcological environmentWater storage tank
The utility model discloses a water jet geological exploration drilling machine, which relates to the technical field of geological drilling and comprises a drilling machine ground part assembly, a water supply pipeline, a drilling tool rotating assembly, a high-pressure water generator assembly, a rock core collecting assembly and a cutting jet head. The drilling machine ground part assembly is composed of a ground machine body, a power system, a gearbox, a control system and an orifice plane rotating system, the end of the water supply pipeline is connected with the high-strength wear-resistant light hollow drilling rod, and the water supply pipeline is connected with the water storage tank. A high-pressure water jet cutter is adopted to cut and explore a target rock mass, and a high-strength wear-resistant light material drilling machine and a drilling tool are light in overall weight, convenient to move, small in torsion required by drilling and low in drilling energy consumption; therefore, in-situ rock mass coring is free of mechanical damage, the damage of exploration drilling to the ecological environment is effectively reduced, the exploration work efficiency is improved, and the drilling exploration quality is reliable, economical, environment-friendly and safe.
Owner:HUNAN JINSHANG ENG CONSTR CO LTD
Resistance and friction reducing device for tight oil shale oil exploitation well drilling
ActiveCN222542365Ureduce frictional resistanceImprove drilling efficiencyConstructionsThermodynamicsWell drilling
The utility model relates to the technical field of tight oil and shale oil exploitation, and discloses a resistance and friction reducing device for tight oil and shale oil exploitation well drilling, which comprises a shell, a resistance and friction reducing mechanism is arranged in the shell, the top of the shell is fixedly connected with a fixed seat, the fixed seat is internally in threaded connection with a drill bit base, and the drill bit base is in threaded connection with the drill bit base. Three supporting frames are fixedly connected to the end, away from the shell, of the drill bit base at equal intervals in a circumferential mode, drill bits are rotationally connected to the supporting frames, a spray head is arranged between every two adjacent supporting frames and fixedly installed on the drill bit base, and a conveying channel communicating with the spray heads is formed in the drill bit base. By arranging the resistance and friction reducing mechanism, supply and injection of lubricating liquid are accurately controlled, in the tight oil shale oil exploitation process, it is ensured that a layer of lubricating film is always kept between drilling equipment and the stratum, friction resistance in the drilling process can be effectively reduced in a continuous lubricating mode, and the drilling efficiency is improved.
Owner:YANCHANG OIL FIELD
Drilling device for roadbed compactness detection
ActiveCN222501643Ueasy to operateeasy to useDerricks/mastsIn situ soil foundationExternal energyDrive shaft
The utility model relates to the technical field of road construction, and discloses a drilling device for roadbed compactness detection, which comprises a fixed seat, a positioning hole is arranged in the fixed seat, a fixed rod is fixedly connected onto the fixed seat, a mounting table is fixedly connected onto the fixed rod, a sliding cylinder sleeved on the fixed rod is arranged between the mounting table and the fixed seat, and a positioning hole is arranged in the sliding cylinder. A lifting plate is fixedly connected to the sliding barrel, a material taking barrel is fixedly connected into the lifting plate, a discharging port is formed in the top of the material taking barrel, a driving shaft is rotationally connected into the material taking barrel, a spiral drill bit is fixedly connected to one end of the driving shaft, and the bottom end of the spiral drill bit penetrates through the material taking barrel to be arranged outside the material taking barrel. The equipment is driven by the two driving structures to drill soil in a rotating mode and ascend and descend respectively, therefore, a worker can drive the equipment through the two hands respectively, no external energy is needed, the equipment is easy to operate, convenient to use, high in drilling speed and good in standardization, and the practicability of the equipment is improved.
Owner:YUNNAN YUNLU ENG INSPECTION CO LTD
A downhole communication system and method of implementing the same
ActiveCN116181321BImprove hook efficiencyincrease drilling speedSurveyTotal factory controlCommunications systemData transmission
The application discloses a downhole communication system and an implementation method thereof, which is used for realizing communication of logging-while-drilling equipment and rotary steering tool hanging connection, and comprises a single bus, a first type of hanging connection equipment hung on the single bus and used for occupying the single bus by using a first communication protocol, wherein data collected by the hanging connection equipment from different communication protocols is obtained in a preset complete communication period, a second type of hanging connection equipment hung on the single bus and used for occupying the single bus by using a second communication protocol, and a communication circuit hung on the single bus and used for transmitting the data collected by the second type of hanging connection equipment to the first type of hanging connection equipment through time-sharing communication with the hanging connection equipment of different communication protocols, wherein the hanging connection equipment with different communication protocols does not occupy the single bus at the same time at the same time. The application improves the hanging connection efficiency of the logging-while-drilling equipment and the rotary steering tool.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1
Drill bit for green static root drilling and planting pile construction based on hard rock land
ActiveCN222296146UImprove stabilityincrease drilling speedDrill bitsApparatus for force/torque/work measurementEnergy consumptionPressure sensing
The utility model relates to the technical field of drill bits, and discloses a drill bit for green static drilling root planting pile construction based on hard rock land, which comprises a drill bit part and a connecting part, the drill bit part and the connecting part are connected through a connecting piece, the drill bit part comprises a drill bit and an expanding wing, the drill bit is conical, and the drill bit is connected with the connecting piece through a fixing piece. The drill bit is designed to be conical, the drill bit can effectively adapt to geological conditions of hard rock land, drilling efficiency is improved, and energy consumption is reduced. Due to the design of the drill bit expanding wings, the contact area is increased, and the stability and drilling speed of the drill bit are improved. And the drill bit can be flexibly adjusted according to different construction environments through the design of the connecting piece, and the construction quality is improved. The structure of the spring and the limiting pin is adopted, effective damping and buffering are achieved, and the drill bit and equipment are protected. And the pressure sensing device is introduced, so that the stress condition of the drill bit can be monitored in real time, data support is provided for construction, and the construction safety and efficiency are improved.
Owner:ZHEJIANG HUAYU FOUNDATION ENG CO LTD
Cervical vertebra hollow lag screw for operative treatment
The invention discloses a cervical vertebra hollow lag screw for operative treatment, and belongs to the field of medical instruments, the cervical vertebra hollow lag screw comprises a screw seat, a screw seat and a lag screw, the upper end of the screw seat is provided with a U-shaped groove for accommodating a fixing rod, and a spherical notch for preventing the screw head from being separated from the lower end of the screw seat is arranged between the screw head and the screw seat; a hexagonal hole is formed in the screw head in the axial direction, a first through hole penetrating through the lag screw is formed in the lag screw in the axial direction, and the hexagonal hole is larger than the first through hole in size. Wide threads are arranged at the end, away from the screw head, of the surface of the screw body, narrow threads are arranged at the end, close to the screw head, of the screw head, and the thread pitch of the wide threads is two times that of the narrow threads. And no thread is arranged between the wide thread and the narrow thread. Two ends of a fracture can be lifted and pressurized, the U-shaped nut is arranged on the rear portion, the thread is arranged close to the nut, and after the U-shaped nut and the connecting rod are fixed together, an injured vertebral body and an adjacent vertebral body can be fixed together, and the effects of pressurizing the fracture end and fixing the fracture end and the adjacent vertebral body are achieved.
Owner:BAISE PEOPLES HOSPITAL
A forward-type fully automatic controllable variable diameter pressure relief connecting rod drill bit structure
ActiveCN111810055Bpromote fragmentationIncrease the degree of fragmentationDrill bitsConstructionsThermodynamicsStructural engineering
The present invention discloses a forward-type fully automatic controllable variable diameter pressure relief connecting rod drill bit structure, which belongs to the field of drilling pressure relief in coal mining or metal mining. It includes a crushing exhaust pick part, a detachable pick part and a spiral powder discharge end cover part which are connected in sequence from front to back; the crushing exhaust pick part includes a crushing exhaust pick body, on which axial crushing teeth, radial picks and air guide holes are respectively arranged, and the air guide holes are located at the center of the crushing exhaust pick body; the detachable pick part is formed by connecting a plurality of groups of detachable pick monomers in sequence, and the pick monomers are arranged in a triangular prism shape for the convenience of powder discharge, and the spiral powder discharge end cover part includes a spiral powder discharge end cover body, on which a spiral powder discharge groove and an air inlet hole are arranged. The drill bit structure of the present invention can realize rapid powder discharge and rapid drilling in the target area during drilling under the action of high-pressure gas.
Owner:SHANDONG UNIV OF SCI & TECH
Underground drilling tool combination for coal-bed gas well landing
ActiveCN222315078UImprove construction efficiencyExtended service lifeDrill bitsConstructionsMining engineeringStructural engineering
The utility model discloses an underground drilling tool assembly for landing of a coal-bed gas well, which is characterized in that the upper end of a PDC (Polycrystalline Diamond Compact) drill bit is screwed with a single-bent screw, the upper end of the single-bent screw is screwed with a one-way valve, the upper end of the one-way valve is screwed with a sitting key joint, an inner cavity of the sitting key joint is provided with a direction finder, the upper end of the sitting key joint is screwed with a non-magnetic drill collar, and the upper end of the non-magnetic drill collar is provided with a centralizer; a common drill collar is screwed above the non-magnetic drill collar, and a heavy weight drill rod is screwed above the common drill collar; five blades are arranged on the crown portion of the PDC drill bit and comprise three long blades and two short blades, the inner end of the first long blade extends to the axis of the drill bit, and the inner ends of the second long blade and the third long blade are close to the axis of the drill bit. A first short blade is arranged between the first long blade and the second long blade, and a second short blade is arranged between the third long blade and the first long blade. The drilling tool assembly is accurate in deflecting and orientation, the drill bit is high in overall aggressiveness, tooth arrangement is optimized, the service life of the drill bit is prolonged, and the single-trip footage is prolonged.
Owner:SINOPEC OILFIELD SERVICE CORPORATION +1
PDC (Polycrystalline Diamond Compact) drill bit cutting tooth and tooth arrangement method
PendingCN119664246AChange the state of stresschange work statusConstructionsMetallurgyPolycrystalline diamond
The invention discloses a PDC drill bit cutting tooth and a tooth arranging method, the cutting tooth is arranged on a blade of a PDC drill bit, the cutting tooth is provided with a base and a superhard layer located at the top end of the base, the top surface of the superhard layer is a cutting surface, the cutting tooth is installed on the blade according to the angle direction that the cutting surface of the cutting tooth forms an alpha angle relative to the plane of a stratum to be broken, and the tooth arranging method is characterized in that the cutting surface of the cutting tooth is arranged on the blade; and the angle alpha is greater than 90 degrees. By adjusting the tooth distribution position and angle, the working faces of the cutting teeth form obtuse angles with the plane of the well bottom, and the working faces of the cutting teeth are inclined upwards, so that the working states of the cutting teeth are changed, the stress states of rocks to be crushed and the cutting teeth are changed, and original shear crushing is changed into tensile shear crushing; the input work required by the cutting teeth for crushing isovolumetric rocks is reduced, and meanwhile, the drill bit is kept stable at the bottom of the well, so that the aim of increasing the drilling speed is fulfilled.
Owner:PETROCHINA CO LTD
Spray gun capable of adjusting target distance of cavitation nozzle
The invention provides a spray gun capable of adjusting the target distance of a cavitation nozzle. The spray gun comprises a spray gun body; the spray gun body is provided with a water inlet and jet flow holes formed in the radial direction of the spray gun body. An elastic sealing gasket, a cavitation nozzle and an adjusting cap are arranged in the jet flow hole, the elastic sealing gasket, the cavitation nozzle and the adjusting cap are sequentially arranged from the position close to the axis of the spray gun body to the position away from the axis of the spray gun body, and the cavitation nozzle is clamped between the elastic sealing gasket and the adjusting cap; the adjusting cap is arranged in the jet flow hole in the radial direction of the spray gun body in the mode that the position can be adjusted. The adjusting cap is arranged in the jet hole in the radial direction of the spray gun body in a position adjusting mode, the cavitation nozzle can be limited, acting force can be applied to the cavitation nozzle, the position of the cavitation nozzle can be adjusted in the radial direction of the spray gun body, and therefore the jet target distance of the cavitation nozzle can be adjusted.
Owner:CHINA NAT PETROLEUM CORP +1
Double-station drilling device
ActiveCN222359303UIncrease productivityincrease drilling speedLarge fixed membersBoring/drilling machinesWorkbenchRotating disc
The utility model provides a double-station drilling device which comprises a workbench mechanism, a first drilling mechanism and a moving mechanism, and the workbench mechanism comprises a first workbench, a second workbench and a sliding frame assembly which are installed in sequence. The drilling mechanism comprises two drilling assemblies, two sliding seat assemblies, two rotating disc assemblies and two pressing assemblies, the two drilling assemblies are arranged on the corresponding sliding frame assemblies in a sliding mode respectively, the two sliding seat assemblies are arranged on the second workbench in a sliding mode, and the two rotating disc assemblies and the two pressing assemblies are connected with the corresponding sliding seat assemblies respectively. The moving mechanism is arranged on the first workbench. The double-station drilling device can machine two parts at the same time, and the production efficiency of machined parts is improved. According to the double-station drilling device, the parts can be transferred to be drilled in the positions of the two drilling mechanisms through the moving mechanism, the work of manually replacing drill bits is reduced, the two drilling speeds of the parts are increased, and therefore the production efficiency is improved.
Owner:SHENZHEN ATC TECH CO LTD
A coring drilling structure
This utility model provides a core drilling structure, comprising: a drill barrel; a vibration mechanism including a cycloidal motor, an eccentric shaft, and at least one eccentric hammer, wherein the output shaft of the cycloidal motor is operatively connected to the eccentric shaft, the eccentric hammer is fixedly mounted on the eccentric shaft, and the eccentric shaft passes through the upper part of the drill barrel, so that when the cycloidal motor drives the eccentric shaft to rotate, the eccentric hammer rotates with the eccentric shaft and drives the drill barrel to vibrate; a drive mechanism including a drive motor and a gearbox, wherein the output end of the drive motor is operatively connected to the input end of the gearbox, and the output end of the gearbox is operatively connected to the drill barrel, so that the drive motor, through the gearbox, drives the drill barrel to rotate around its own axis; the cycloidal motor and the drive motor are independently disposed in the drill barrel, and when the cycloidal motor stops working, the eccentric hammer rotates synchronously with the drill barrel. This solves the technical problem of low drilling efficiency in existing drilling machines.
Owner:CHONGQING HONGGONG INSTRUCTIONAL MACHINE
Center drill bit of impactor
The utility model provides a center drill bit of an impactor. The center drill bit comprises a guide drill bit and a drill ring, vertical air holes are formed in the middle of the guide drill bit in the axial lead direction and evenly distributed around the axial lead, clamping and embedding tables used for being connected with the drill ring in a clamped mode are arranged on the outer circumferential face of the lower end of the guide drill bit at intervals, and clamping and connecting tables corresponding to the clamping and embedding tables are arranged on the inner circumferential face of the drill ring. And the drill ring is clamped at the end part of the guide drill bit through the matching of the clamping table and the clamping and embedding table. By changing the structure of the drill bit, adopting the matching of the guide drill bit and the drill ring and increasing the distance between the guide drill bit and the hole wall, drilling cuttings are discharged more easily, the air hole layout and the chip removal structure are optimized, and the problems that in the prior art, a drill bit is not smooth in slag removal and low in airflow efficiency are effectively solved.
Owner:CHANGSHA BELDEN NEW MATERIAL TECH CO LTD
A drilling device for sheet metal parts
This utility model relates to the field of metal sheet processing technology, specifically a drilling device for metal sheets. It includes an operating table, a clamping assembly mounted at the center of the operating table, and movable adjustment assemblies distributed on both sides of the clamping assembly. A multi-axis drilling device, opposite to the clamping assembly, is mounted on the moving end of each movable adjustment assembly. This drilling device for metal sheets automatically clamps the metal sheet by driving a push plate and a clamping plate with a push cylinder in the clamping assembly. This eliminates the need for manual disassembly and re-fixing, reducing the operator's workload, avoiding manual positioning errors, and improving drilling efficiency and processing accuracy. The movable adjustment assemblies allow for precise adjustment of the position of the multi-axis drilling device, adapting to the processing needs of different hole positions and improving the device's versatility. The multi-axis drilling device allows for simultaneous processing of multiple holes in the metal sheet, significantly increasing drilling speed and meeting the needs of mass production.
Owner:XIAOGAN HONGMAO MASCH EQUIP CO LTD
Coiled tubing reaction torque reduction tool, system and method
PendingCN121853937Areduce the chance of damageExtended service lifeDrilling rodsDrilling casingsFriction torqueControl engineering
The invention discloses a coiled tubing reaction torque reduction tool, system and method. The tool comprises a shell, an underground hydraulic control circuit, a hydraulic assembly, a clutch plate set, a clutch plate sleeve and a continuous oil pipe connector. The underground hydraulic control circuit is used for receiving a first electric signal instruction and controlling the hydraulic assembly to push and press the clutch disc set so that quantitative friction torque can be generated between clutch discs and transmitted to the continuous oil pipe connector. Or a second electric signal instruction is received, and the hydraulic assembly is controlled to release the clutch disc set so that the clutch discs can be in the loose state. The system comprises a coiled tubing reaction torque reduction tool, an upper computer, a coiled tubing and a drill bit. The upper computer is used for sending an electric signal instruction to the underground hydraulic control circuit and controlling whether reaction torque generated by the drill bit is transmitted to the coiled tubing or not. According to the tool, system and method, the damage probability of the coiled tubing can be greatly reduced, and the service life of the coiled tubing is prolonged.
Owner:CNPC GREATWALL DRILLING COMPANY +1